<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

</body>
<script>
    function fn(one,two){
        // "use strict";
        console.log(this,one,two);
    }
    // fn();
    // const my = new fn();
    // fn.bind({a:1,b:2})(100,200);
    // fn.bind({a:1,b:2},10,20)(100,200);


    // fn.call({a:11,b:12},10,20);
    // fn.apply({a:11,b:12},[100,200]);
</script>
</html>